Finding the Fourth Proportional to 228,944.21, 315,932.04 and 126,961.70
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Solution
The fourth proportional to 228,944.21, 315,932.04 and 126,961.70 is: 175,201.06
Step by Step Solution
- Step 1: Write the proportion equation
228,944.21 : 315,932.04 = 126,961.70 : x - Step 2: Convert to fraction form
228,944.21/315,932.04 = 126,961.70/x - Step 3: Cross multiply
228,944.21x = 315,932.04 × 126,961.70 - Step 4: Simplify right side
228,944.21x = 40,111,267,303.21 - Step 5: Solve for x
x = 40,111,267,303.21/228,944.21 - Step 6: Final answer
x = 175,201.06
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.